SciELO - Scientific Electronic Library Online

 
vol.81 número187Characterization of the supply and value chains of Colombian cocoaImplementing an evolutionary algorithm for locating container yards of a 3PL provider índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

CONSTANZO-R., Robinson; PAGLIERO-N., Antonio  e  VERGARA-G., Froilán. Study of copper deposit on a porous electrode of carbon and stainless steel by SEM-XRD and image analysis. Dyna rev.fac.nac.minas [online]. 2014, vol.81, n.187, pp.41-48. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v81n186.39924.

The purpose of this work was to make a qualitative analysis of the distribution of copper deposit inside of stainless steel and graphite porous electrodes. For that, representative sections of steel and graphite samples were analyzed by stereoscopic microscopy, SEM-XRD analysis and image analysis by software Scentis Struers Software®. The analysis showed that the copper is not deposited uniformly over the electrode thickness. For steel electrode, the deposit depth in the thickness was around 50%, while graphite electrode about 90% of the thickness. In general, an increase of the deposit towards the end facing the anode was observed and with different sites of copper deposit growth. This behavior shows a current and voltage distribution which is a function of the physical parameters of electrode, and physicochemical and hydrodynamic characteristics of the electrolyte.

Palavras-chave : Porous electrode; potential distribution; current distribution.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )